| [483] | 1 | define(["dojo/_base/kernel", "./entities", "dojo/_base/array", "dojo/_base/window", "dojo/_base/sniff"], |
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| 2 | function(lang, Entities, ArrayUtil, Window, has) { |
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| 3 | var dhf = lang.getObject("dojox.html.format",true); |
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| 4 | |
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| 5 | dhf.prettyPrint = function(html/*String*/, indentBy /*Integer?*/, maxLineLength /*Integer?*/, map/*Array?*/, /*boolean*/ xhtml){ |
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| 6 | // summary: |
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| 7 | // Function for providing a 'pretty print' version of HTML content from |
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| 8 | // the provided string. It's nor perfect by any means, but it does |
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| 9 | // a 'reasonable job'. |
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| 10 | // html: String |
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| 11 | // The string of HTML to try and generate a 'pretty' formatting. |
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| 12 | // indentBy: Integer |
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| 13 | // Optional input for the number of spaces to use when indenting. |
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| 14 | // If not defined, zero, negative, or greater than 10, will just use tab |
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| 15 | // as the indent. |
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| 16 | // maxLineLength: Integer |
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| 17 | // Optional input for the number of characters a text line should use in |
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| 18 | // the document, including the indent if possible. |
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| 19 | // map: Array |
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| 20 | // Optional array of entity mapping characters to use when processing the |
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| 21 | // HTML Text content. By default it uses the default set used by the |
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| 22 | // dojox.html.entities.encode function. |
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| 23 | // xhtml: boolean |
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| 24 | // Optional parameter that declares that the returned HTML should try to be 'xhtml' compatible. |
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| 25 | // This means normally unclosed tags are terminated with /> instead of >. Example: `<hr>` -> `<hr />` |
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| 26 | var content = []; |
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| 27 | var indentDepth = 0; |
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| 28 | var closeTags = []; |
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| 29 | var iTxt = "\t"; |
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| 30 | var textContent = ""; |
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| 31 | var inlineStyle = []; |
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| 32 | var i; |
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| 33 | |
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| 34 | // Compile regexps once for this call. |
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| 35 | var rgxp_fixIEAttrs = /[=]([^"']+?)(\s|>)/g; |
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| 36 | var rgxp_styleMatch = /style=("[^"]*"|'[^']*'|\S*)/gi; |
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| 37 | var rgxp_attrsMatch = /[\w-]+=("[^"]*"|'[^']*'|\S*)/gi; |
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| 38 | |
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| 39 | // Check to see if we want to use spaces for indent instead |
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| 40 | // of tab. |
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| 41 | if(indentBy && indentBy > 0 && indentBy < 10){ |
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| 42 | iTxt = ""; |
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| 43 | for(i = 0; i < indentBy; i++){ |
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| 44 | iTxt += " "; |
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| 45 | } |
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| 46 | } |
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| 47 | |
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| 48 | //Build the content outside of the editor so we can walk |
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| 49 | //via DOM and build a 'pretty' output. |
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| 50 | var contentDiv = Window.doc.createElement("div"); |
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| 51 | contentDiv.innerHTML = html; |
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| 52 | |
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| 53 | // Use the entity encode/decode functions, they cache on the map, |
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| 54 | // so it won't multiprocess a map. |
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| 55 | var encode = Entities.encode; |
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| 56 | var decode = Entities.decode; |
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| 57 | |
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| 58 | /** Define a bunch of formatters to format the output. **/ |
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| 59 | var isInlineFormat = function(tag){ |
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| 60 | // summary: |
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| 61 | // Function to determine if the current tag is an inline |
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| 62 | // element that does formatting, as we don't want to |
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| 63 | // break/indent around it, as it can screw up text. |
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| 64 | // tag: |
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| 65 | // The tag to examine |
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| 66 | switch(tag){ |
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| 67 | case "a": |
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| 68 | case "b": |
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| 69 | case "strong": |
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| 70 | case "s": |
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| 71 | case "strike": |
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| 72 | case "i": |
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| 73 | case "u": |
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| 74 | case "em": |
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| 75 | case "sup": |
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| 76 | case "sub": |
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| 77 | case "span": |
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| 78 | case "font": |
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| 79 | case "big": |
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| 80 | case "cite": |
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| 81 | case "q": |
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| 82 | case "small": |
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| 83 | return true; |
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| 84 | default: |
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| 85 | return false; |
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| 86 | } |
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| 87 | }; |
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| 88 | |
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| 89 | //Create less divs. |
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| 90 | var div = contentDiv.ownerDocument.createElement("div"); |
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| 91 | var outerHTML = function(node){ |
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| 92 | // summary: |
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| 93 | // Function to return the outer HTML of a node. |
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| 94 | // Yes, IE has a function like this, but using cloneNode |
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| 95 | // allows avoiding looking at any child nodes, because in this |
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| 96 | // case, we don't want them. |
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| 97 | var clone = node.cloneNode(false); |
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| 98 | div.appendChild(clone); |
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| 99 | var html = div.innerHTML; |
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| 100 | div.innerHTML = ""; |
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| 101 | return html; |
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| 102 | }; |
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| 103 | |
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| 104 | var sizeIndent = function(){ |
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| 105 | var i, txt = ""; |
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| 106 | for(i = 0; i < indentDepth; i++){ |
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| 107 | txt += iTxt; |
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| 108 | } |
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| 109 | return txt.length; |
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| 110 | } |
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| 111 | |
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| 112 | var indent = function(){ |
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| 113 | // summary: |
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| 114 | // Function to handle indent depth. |
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| 115 | var i; |
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| 116 | for(i = 0; i < indentDepth; i++){ |
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| 117 | content.push(iTxt); |
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| 118 | } |
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| 119 | }; |
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| 120 | var newline = function(){ |
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| 121 | // summary: |
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| 122 | // Function to handle newlining. |
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| 123 | content.push("\n"); |
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| 124 | }; |
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| 125 | |
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| 126 | var processTextNode = function(n){ |
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| 127 | // summary: |
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| 128 | // Function to process the text content for doc |
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| 129 | // insertion |
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| 130 | // n: |
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| 131 | // The text node to process. |
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| 132 | textContent += encode(n.nodeValue, map); |
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| 133 | }; |
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| 134 | |
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| 135 | var formatText = function(txt){ |
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| 136 | // summary: |
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| 137 | // Function for processing the text content encountered up to a |
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| 138 | // point and inserting it into the formatted document output. |
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| 139 | // txt: |
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| 140 | // The text to format. |
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| 141 | var i; |
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| 142 | var _iTxt; |
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| 143 | |
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| 144 | // Clean up any indention organization since we're going to rework it |
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| 145 | // anyway. |
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| 146 | var _lines = txt.split("\n"); |
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| 147 | for(i = 0; i < _lines.length; i++){ |
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| 148 | _lines[i] = lang.trim(_lines[i]); |
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| 149 | } |
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| 150 | txt = _lines.join(" "); |
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| 151 | txt = lang.trim(txt); |
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| 152 | if(txt !== ""){ |
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| 153 | var lines = []; |
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| 154 | if(maxLineLength && maxLineLength > 0){ |
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| 155 | var indentSize = sizeIndent(); |
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| 156 | var maxLine = maxLineLength; |
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| 157 | if(maxLineLength > indentSize){ |
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| 158 | maxLine -= indentSize; |
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| 159 | } |
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| 160 | while(txt){ |
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| 161 | if(txt.length > maxLineLength){ |
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| 162 | for(i = maxLine; (i > 0 && txt.charAt(i) !== " "); i--){ |
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| 163 | // Do nothing, we're just looking for a space to split at. |
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| 164 | } |
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| 165 | if(!i){ |
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| 166 | // Couldn't find a split going back, so go forward. |
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| 167 | for(i = maxLine; (i < txt.length && txt.charAt(i) !== " "); i++){ |
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| 168 | // Do nothing, we're just looking for a space to split at. |
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| 169 | } |
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| 170 | } |
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| 171 | var line = txt.substring(0, i); |
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| 172 | line = lang.trim(line); |
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| 173 | // Shift up the text string to the next chunk. |
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| 174 | txt = lang.trim(txt.substring((i == txt.length)?txt.length:i + 1, txt.length)); |
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| 175 | if(line){ |
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| 176 | _iTxt = ""; |
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| 177 | for(i = 0; i < indentDepth; i++){ |
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| 178 | _iTxt += iTxt; |
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| 179 | } |
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| 180 | line = _iTxt + line + "\n"; |
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| 181 | } |
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| 182 | lines.push(line); |
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| 183 | }else{ |
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| 184 | // Line is shorter than out desired length, so use it. |
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| 185 | // as/is |
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| 186 | _iTxt = ""; |
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| 187 | for(i = 0; i < indentDepth; i++){ |
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| 188 | _iTxt += iTxt; |
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| 189 | } |
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| 190 | txt = _iTxt + txt + "\n"; |
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| 191 | lines.push(txt); |
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| 192 | txt = null; |
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| 193 | } |
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| 194 | } |
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| 195 | return lines.join(""); |
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| 196 | }else{ |
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| 197 | _iTxt = ""; |
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| 198 | for(i = 0; i < indentDepth; i++){ |
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| 199 | _iTxt += iTxt; |
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| 200 | } |
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| 201 | txt = _iTxt + txt + "\n"; |
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| 202 | return txt; |
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| 203 | } |
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| 204 | }else{ |
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| 205 | return ""; |
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| 206 | } |
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| 207 | }; |
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| 208 | |
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| 209 | var processScriptText = function(txt){ |
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| 210 | // summary: |
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| 211 | // Function to clean up potential escapes in the script code. |
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| 212 | if(txt){ |
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| 213 | txt = txt.replace(/"/gi, "\""); |
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| 214 | txt = txt.replace(/>/gi, ">"); |
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| 215 | txt = txt.replace(/</gi, "<"); |
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| 216 | txt = txt.replace(/&/gi, "&"); |
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| 217 | } |
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| 218 | return txt; |
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| 219 | }; |
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| 220 | |
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| 221 | var formatScript = function(txt){ |
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| 222 | // summary: |
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| 223 | // Function to rudimentary formatting of script text. |
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| 224 | // Not perfect, but it helps get some level of organization |
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| 225 | // in there. |
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| 226 | // txt: |
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| 227 | // The script text to try to format a bit. |
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| 228 | if(txt){ |
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| 229 | txt = processScriptText(txt); |
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| 230 | var i, t, c, _iTxt; |
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| 231 | var indent = 0; |
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| 232 | var scriptLines = txt.split("\n"); |
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| 233 | var newLines = []; |
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| 234 | for (i = 0; i < scriptLines.length; i++){ |
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| 235 | var line = scriptLines[i]; |
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| 236 | var hasNewlines = (line.indexOf("\n") > -1); |
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| 237 | line = lang.trim(line); |
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| 238 | if(line){ |
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| 239 | var iLevel = indent; |
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| 240 | // Not all blank, so we need to process. |
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| 241 | for(c = 0; c < line.length; c++){ |
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| 242 | var ch = line.charAt(c); |
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| 243 | if(ch === "{"){ |
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| 244 | indent++; |
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| 245 | }else if(ch === "}"){ |
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| 246 | indent--; |
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| 247 | // We want to back up a bit before the |
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| 248 | // line is written. |
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| 249 | iLevel = indent; |
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| 250 | } |
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| 251 | } |
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| 252 | _iTxt = ""; |
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| 253 | for(t = 0; t < indentDepth + iLevel; t++){ |
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| 254 | _iTxt += iTxt; |
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| 255 | } |
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| 256 | newLines.push(_iTxt + line + "\n"); |
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| 257 | }else if(hasNewlines && i === 0){ |
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| 258 | // Just insert a newline for blank lines as |
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| 259 | // long as it's not the first newline (we |
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| 260 | // already inserted that in the openTag handler) |
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| 261 | newLines.push("\n"); |
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| 262 | } |
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| 263 | |
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| 264 | } |
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| 265 | // Okay, create the script text, hopefully reasonably |
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| 266 | // formatted. |
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| 267 | txt = newLines.join(""); |
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| 268 | } |
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| 269 | return txt; |
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| 270 | }; |
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| 271 | |
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| 272 | var openTag = function(node){ |
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| 273 | // summary: |
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| 274 | // Function to open a new tag for writing content. |
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| 275 | var name = node.nodeName.toLowerCase(); |
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| 276 | // Generate the outer node content (tag with attrs) |
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| 277 | var nText = lang.trim(outerHTML(node)); |
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| 278 | var tag = nText.substring(0, nText.indexOf(">") + 1); |
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| 279 | |
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| 280 | // Also thanks to IE, we need to check for quotes around |
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| 281 | // attributes and insert if missing. |
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| 282 | tag = tag.replace(rgxp_fixIEAttrs,'="$1"$2'); |
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| 283 | |
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| 284 | // And lastly, thanks IE for changing style casing and end |
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| 285 | // semi-colon and webkit adds spaces, so lets clean it up by |
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| 286 | // sorting, etc, while we're at it. |
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| 287 | tag = tag.replace(rgxp_styleMatch, function(match){ |
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| 288 | var sL = match.substring(0,6); |
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| 289 | var style = match.substring(6, match.length); |
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| 290 | var closure = style.charAt(0); |
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| 291 | style = lang.trim(style.substring(1,style.length -1)); |
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| 292 | style = style.split(";"); |
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| 293 | var trimmedStyles = []; |
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| 294 | ArrayUtil.forEach(style, function(s){ |
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| 295 | s = lang.trim(s); |
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| 296 | if(s){ |
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| 297 | // Lower case the style name, leave the value alone. Mainly a fixup for IE. |
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| 298 | s = s.substring(0, s.indexOf(":")).toLowerCase() + s.substring(s.indexOf(":"), s.length); |
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| 299 | trimmedStyles.push(s); |
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| 300 | } |
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| 301 | }); |
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| 302 | trimmedStyles = trimmedStyles.sort(); |
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| 303 | |
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| 304 | // Reassemble and return the styles in sorted order. |
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| 305 | style = trimmedStyles.join("; "); |
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| 306 | var ts = lang.trim(style); |
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| 307 | if(!ts || ts === ";"){ |
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| 308 | // Just remove any style attrs that are empty. |
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| 309 | return ""; |
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| 310 | }else{ |
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| 311 | style += ";"; |
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| 312 | return sL + closure + style + closure; |
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| 313 | } |
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| 314 | }); |
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| 315 | |
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| 316 | // Try and sort the attributes while we're at it. |
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| 317 | var attrs = []; |
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| 318 | tag = tag.replace(rgxp_attrsMatch, function(attr){ |
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| 319 | attrs.push(lang.trim(attr)); |
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| 320 | return ""; |
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| 321 | }); |
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| 322 | attrs = attrs.sort(); |
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| 323 | |
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| 324 | // Reassemble the tag with sorted attributes! |
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| 325 | tag = "<" + name; |
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| 326 | if(attrs.length){ |
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| 327 | tag += " " + attrs.join(" "); |
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| 328 | } |
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| 329 | |
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| 330 | // Determine closure status. If xhtml, |
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| 331 | // then close the tag properly as needed. |
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| 332 | if(nText.indexOf("</") != -1){ |
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| 333 | closeTags.push(name); |
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| 334 | tag += ">"; |
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| 335 | }else{ |
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| 336 | if(xhtml){ |
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| 337 | tag += " />"; |
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| 338 | }else{ |
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| 339 | tag += ">"; |
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| 340 | } |
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| 341 | closeTags.push(false); |
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| 342 | } |
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| 343 | |
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| 344 | var inline = isInlineFormat(name); |
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| 345 | inlineStyle.push(inline); |
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| 346 | if(textContent && !inline){ |
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| 347 | // Process any text content we have that occurred |
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| 348 | // before the open tag of a non-inline. |
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| 349 | content.push(formatText(textContent)); |
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| 350 | textContent = ""; |
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| 351 | } |
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| 352 | |
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| 353 | // Determine if this has a closing tag or not! |
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| 354 | if(!inline){ |
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| 355 | indent(); |
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| 356 | content.push(tag); |
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| 357 | newline(); |
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| 358 | indentDepth++; |
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| 359 | }else{ |
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| 360 | textContent += tag; |
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| 361 | } |
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| 362 | |
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| 363 | }; |
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| 364 | |
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| 365 | var closeTag = function(){ |
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| 366 | // summary: |
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| 367 | // Function to close out a tag if necessary. |
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| 368 | var inline = inlineStyle.pop(); |
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| 369 | if(textContent && !inline){ |
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| 370 | // Process any text content we have that occurred |
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| 371 | // before the close tag. |
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| 372 | content.push(formatText(textContent)); |
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| 373 | textContent = ""; |
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| 374 | } |
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| 375 | var ct = closeTags.pop(); |
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| 376 | if(ct){ |
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| 377 | ct = "</" + ct + ">"; |
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| 378 | if(!inline){ |
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| 379 | indentDepth--; |
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| 380 | indent(); |
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| 381 | content.push(ct); |
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| 382 | newline(); |
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| 383 | }else{ |
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| 384 | textContent += ct; |
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| 385 | } |
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| 386 | }else{ |
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| 387 | indentDepth--; |
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| 388 | } |
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| 389 | }; |
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| 390 | |
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| 391 | var processCommentNode = function(n){ |
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| 392 | // summary: |
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| 393 | // Function to handle processing a comment node. |
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| 394 | // n: |
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| 395 | // The comment node to process. |
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| 396 | |
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| 397 | //Make sure contents aren't double-encoded. |
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| 398 | var commentText = decode(n.nodeValue, map); |
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| 399 | indent(); |
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| 400 | content.push("<!--"); |
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| 401 | newline(); |
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| 402 | indentDepth++; |
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| 403 | content.push(formatText(commentText)); |
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| 404 | indentDepth--; |
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| 405 | indent(); |
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| 406 | content.push("-->"); |
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| 407 | newline(); |
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| 408 | }; |
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| 409 | |
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| 410 | var processNode = function(node) { |
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| 411 | // summary: |
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| 412 | // Entrypoint for processing all the text! |
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| 413 | var children = node.childNodes; |
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| 414 | if(children){ |
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| 415 | var i; |
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| 416 | for(i = 0; i < children.length; i++){ |
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| 417 | var n = children[i]; |
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| 418 | if(n.nodeType === 1){ |
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| 419 | var tg = lang.trim(n.tagName.toLowerCase()); |
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| 420 | if(has("ie") && n.parentNode != node){ |
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| 421 | // IE is broken. DOMs are supposed to be a tree. |
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| 422 | // But in the case of malformed HTML, IE generates a graph |
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| 423 | // meaning one node ends up with multiple references |
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| 424 | // (multiple parents). This is totally wrong and invalid, but |
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| 425 | // such is what it is. We have to keep track and check for |
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| 426 | // this because otherwise the source output HTML will have dups. |
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| 427 | continue; |
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| 428 | } |
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| 429 | if(tg && tg.charAt(0) === "/"){ |
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| 430 | // IE oddity. Malformed HTML can put in odd tags like: |
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| 431 | // </ >, </span>. It treats a mismatched closure as a new |
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| 432 | // start tag. So, remove them. |
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| 433 | continue; |
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| 434 | }else{ |
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| 435 | //Process non-dup, seemingly wellformed elements! |
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| 436 | openTag(n); |
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| 437 | if(tg === "script"){ |
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| 438 | content.push(formatScript(n.innerHTML)); |
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| 439 | }else if(tg === "pre"){ |
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| 440 | var preTxt = n.innerHTML; |
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| 441 | if(has("mozilla")){ |
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| 442 | //Mozilla screws this up, so fix it up. |
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| 443 | preTxt = preTxt.replace("<br>", "\n"); |
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| 444 | preTxt = preTxt.replace("<pre>", ""); |
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| 445 | preTxt = preTxt.replace("</pre>", ""); |
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| 446 | } |
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| 447 | // Add ending newline, if needed. |
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| 448 | if(preTxt.charAt(preTxt.length - 1) !== "\n"){ |
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| 449 | preTxt += "\n"; |
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| 450 | } |
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| 451 | content.push(preTxt); |
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| 452 | }else{ |
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| 453 | processNode(n); |
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| 454 | } |
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| 455 | closeTag(); |
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| 456 | } |
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| 457 | }else if(n.nodeType === 3 || n.nodeType === 4){ |
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| 458 | processTextNode(n); |
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| 459 | }else if(n.nodeType === 8){ |
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| 460 | processCommentNode(n); |
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| 461 | } |
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| 462 | } |
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| 463 | } |
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| 464 | }; |
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| 465 | |
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| 466 | //Okay, finally process the input string. |
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| 467 | processNode(contentDiv); |
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| 468 | if(textContent){ |
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| 469 | // Insert any trailing text. See: #10854 |
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| 470 | content.push(formatText(textContent)); |
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| 471 | textContent = ""; |
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| 472 | } |
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| 473 | return content.join(""); //String |
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| 474 | }; |
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| 475 | return dhf; |
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| 476 | }); |
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| 477 | |
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